JPH0635123B2 - Modified wood manufacturing method - Google Patents
Modified wood manufacturing methodInfo
- Publication number
- JPH0635123B2 JPH0635123B2 JP32591687A JP32591687A JPH0635123B2 JP H0635123 B2 JPH0635123 B2 JP H0635123B2 JP 32591687 A JP32591687 A JP 32591687A JP 32591687 A JP32591687 A JP 32591687A JP H0635123 B2 JPH0635123 B2 JP H0635123B2
- Authority
- JP
- Japan
- Prior art keywords
- wood
- treatment liquid
- water
- treatment
- modified
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002023 wood Substances 0.000 title claims description 87
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000011282 treatment Methods 0.000 claims description 67
- 239000007788 liquid Substances 0.000 claims description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 229920006395 saturated elastomer Polymers 0.000 claims description 23
- 238000005470 impregnation Methods 0.000 claims description 22
- 229910010272 inorganic material Inorganic materials 0.000 claims description 6
- 239000011147 inorganic material Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 description 35
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 230000002421 anti-septic effect Effects 0.000 description 8
- 150000001450 anions Chemical class 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000077 insect repellent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 5
- 150000001768 cations Chemical class 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 239000003063 flame retardant Substances 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000002335 preservative effect Effects 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003755 preservative agent Substances 0.000 description 3
- 241000218645 Cedrus Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241001337993 Agathis <wasp> Species 0.000 description 1
- 229910017090 AlO 2 Inorganic materials 0.000 description 1
- 240000005109 Cryptomeria japonica Species 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 235000015392 Sesbania grandiflora Nutrition 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000012986 chain transfer agent Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
【発明の詳細な説明】 〔技術分野〕 この発明は、難燃性、防腐・防虫性および寸法安定性を
付与した改質木材の製法に関する。Description: TECHNICAL FIELD The present invention relates to a method for producing modified wood having flame retardancy, antiseptic / insect repellent properties and dimensional stability.
木材に難燃性を付与するための処理法として、種々の方
法がある。難燃化のメカニズムから分類すると、以下の
ように大別される。There are various methods for treating wood to impart flame retardancy. When classified according to the flame retardant mechanism, it is roughly classified as follows.
(a) 無機物による被覆 (b) 炭化促進 (c) 発炎燃焼における連鎖反応の阻害 (d) 不燃性ガスの発生 (e) 分解，結晶水放出による吸熱 (f) 発泡層による断熱 しかし、前記のように分類される従来の処理法では、充
分満足できる難燃性を有する改質木材を得ることは困難
であった。(a) Inorganic coating (b) Carbonization promotion (c) Inhibition of chain reaction in flaming combustion (d) Generation of non-combustible gas (e) Endotherm due to decomposition and release of crystal water (f) Thermal insulation by foam layer It was difficult to obtain a modified wood having sufficiently satisfactory flame retardancy by the conventional treatment methods classified as follows.
他方、改質木材は、建材等として用いられるため、防腐
・防虫性および寸法安定性の向上も求められていた。On the other hand, since modified wood is used as a building material and the like, improvement of antiseptic / insect resistance and dimensional stability has also been demanded.
この発明は、このような事情に鑑みてなされたものであ
って、優れた難燃性，防腐・防虫性および寸法安定性を
有するものを得ることができる改質木材の製法を提供す
ることを目的としている。The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a modified wood producing method capable of obtaining a material having excellent flame retardancy, antiseptic / insect repellent property and dimensional stability. Has an aim.
前記のような目的を達成するため、発明者らは研究を重
ね、木材に水不溶な（不溶性の）不燃性無機物を含ませ
ればよいと考えた。この不溶性不燃性無機物は、前記
(a)のほかその種類によっては、(b)および(c)等のメカ
ニズムによる効果を併せて期待でき、そのうえ防腐・防
虫性および寸法安定性の向上も期待できるからである。
しかも、水に溶けにくいので、いったん木材組織内に定
着させられれば、それ以降木材から溶け出す恐れも少な
い。In order to achieve the above-mentioned object, the inventors have conducted extensive research and thought that wood should contain a water-insoluble (insoluble) non-combustible inorganic substance. This insoluble non-combustible inorganic substance is
This is because, in addition to (a), depending on the type, effects due to the mechanisms (b) and (c) can be expected together, and further, antiseptic / insect repellent properties and dimensional stability can be expected to be improved.
Moreover, since it is difficult to dissolve in water, once it is settled in the wood structure, there is little risk that it will dissolve from the wood thereafter.
この上記(a)，(b)および(c)のメカニズムについて、つ
ぎに詳しく説明する。The above mechanisms (a), (b) and (c) will be described in detail below.
(a)の無機物による被覆とは、たとえ、可燃性の材料で
あっても、不燃性の無機物と適当な配合比で複合させら
れれば、難燃化しうるということである。たとえば、従
来知られている木片セメント板は、可燃性木材を不燃性
のセメントと約１対１の重量配合比で混合し、板状に成
形したものであって、ＪＩＳ規格により準不燃材料とし
て認められている。The coating with the inorganic substance (a) means that even a combustible material can be made flame-retardant if it is compounded with a non-combustible inorganic substance at an appropriate mixing ratio. For example, a conventionally known wood chip cement board is made by mixing flammable wood with non-combustible cement in a weight mixing ratio of about 1: 1 and molded into a board shape. It recognized.
(b)の炭化促進とは、つぎのようなメカニズムである。
木材は、加熱されると熱分解して可燃性ガスを発生し、
これが発炎燃焼するわけであるが、このときリン酸ある
いはホウ酸が存在すると、木材の熱分解、すなわち炭化
が促進される。こうして形成された炭化層が断熱層とし
て作用し、難燃効果が生じるのである。The carbonization promotion of (b) is the following mechanism.
When wood is heated, it decomposes into flammable gas,
This is flaming and burning, and the presence of phosphoric acid or boric acid at this time promotes thermal decomposition of wood, that is, carbonization. The carbonized layer thus formed acts as a heat insulating layer and produces a flame retardant effect.
発炎燃焼における連鎖反応の阻害(c)は、炎中でのラジ
カル的な酸化反応において、ハロゲンが連鎖移動剤とし
て作用する結果、酸化反応が阻害されて難燃効果が生じ
るというメカニズムである。The inhibition (c) of the chain reaction in flaming combustion is a mechanism in which a halogen acts as a chain transfer agent in a radical oxidation reaction in a flame, and as a result, the oxidation reaction is inhibited and a flame retardant effect is produced.
つぎに、木材の防腐・防虫化について説明する。菌類が
木材を腐敗させる際、まず、菌糸が木材内腔中へ侵入す
ることが不可欠である。しかし、木材内腔中に異物が存
在すると菌糸が侵入できず、結果的に腐敗されにくくな
る。木材内腔中の異物は、特に防腐効果のある薬剤（防
腐剤）等である必要はなく、菌類の養分になるものでな
ければ、何であっても良い。防虫についても防腐と同じ
である。したがって、不溶性不燃性無機物を木材内腔中
に含ませれば、木材の防腐・防虫性を向上させうる。Next, the preservative and insect control of wood will be described. When fungi decompose wood, it is essential that hyphae first enter the wood lumen. However, if there is a foreign substance in the wood lumen, mycelia cannot penetrate, and as a result, it is less likely to rot. The foreign matter in the wood lumen does not have to be a drug having a preservative effect (preservative) or the like, and may be any as long as it is not a nutrient for fungi. Insect repellent is the same as preservative. Therefore, if an insoluble non-combustible inorganic substance is contained in the wood lumen, the antiseptic / insect repellent properties of the wood can be improved.
さらに、木材の寸法安定化について説明する。Furthermore, dimensional stabilization of wood will be described.
木材を膨潤させておき、木材細胞壁中に何らかの物質を
固定できれば、バルク効果により、寸法安定化効果が得
られる。固定物質として、水に溶けにくい無機物も使い
うる。したがって、不溶性不燃性無機物を木材細胞壁中
に固定すれば、寸法安定性を向上させうる。If the wood is swollen and some substance can be fixed in the cell wall of the wood, the dimensional stabilization effect can be obtained by the bulk effect. As the fixing substance, an inorganic substance which is hardly soluble in water can be used. Therefore, fixing the insoluble non-combustible inorganic substance in the wood cell wall can improve the dimensional stability.
しかし、不溶性不燃性無機物をそのまま水等の溶媒に分
散させ、この分散液からなる処理液を木材中に浸透させ
ようとしても、木材中にはほとんど水等の溶媒しか浸透
して行かない。これは、つぎのような理由による。すな
わち、木材中に浸透する際に処理液が通過するべき経路
の内、最も狭い部分はピットメンブランであるが、ここ
における空隙径が約0.1μｍであるのに対し、分散した
不溶性の不燃性無機物の粒子は、普通、数μｍ以上ある
からである。However, even if an insoluble non-combustible inorganic substance is directly dispersed in a solvent such as water and the treatment liquid comprising this dispersion is intended to penetrate into wood, only the solvent such as water penetrates into the wood. This is for the following reasons. That is, the narrowest part of the path that the treatment liquid should pass through when penetrating into wood is the pit membrane, but the void diameter here is about 0.1 μm, whereas the dispersed insoluble non-combustible inorganic substance This is because the particles are usually several μm or more.
そこで、発明者らは、さらに研究を重ね、不溶性の不燃
性無機物中の少なくともカチオン部分を構成するイオン
を含む処理液を木材中に含浸させた後、上記無機物の少
なくともアニオン部分を構成するイオンを含む処理液を
木材中に含浸させて、木材内で両イオンを反応させて木
材中に不溶性不燃性無機物を生成させるようにすればよ
いということを見い出した。さらに、上記処理液中に木
材を浸漬させて含浸させるにあたり、木材が中心部まで
均一に水で満たされた状態、すなわち飽水状態になって
いれば、含浸処理時間が短縮され、かつ、含浸された無
機物が木材内に均一に分布するようになることを見い出
し、ここにこの発明を完成した。Therefore, the inventors further conducted research, and after impregnating wood with a treatment liquid containing an ion constituting at least a cation portion in an insoluble non-combustible inorganic substance, an ion constituting at least an anion portion of the inorganic substance was removed. It has been found that the treating solution containing the same can be impregnated into wood so that both ions are reacted in the wood to form an insoluble non-combustible inorganic substance in the wood. Further, when the wood is soaked in the treatment liquid to be impregnated, if the wood is uniformly filled with water up to the center, that is, if the wood is in a saturated state, the impregnation treatment time is shortened, and the impregnation is performed. It was found that the obtained inorganic substance is uniformly distributed in wood, and the present invention has been completed here.
したがって、この発明は、改質しようとする原料木材に
対し、混合することにより不溶性の不燃性無機物を生じ
させる処理液を別々に含浸させて木材組織内に前記無機
物を定着させるようにする改質木材の製法であって、前
記処理液による含浸処理が行われる前に、前記原料木材
を単板化に対して飽水処理を行うことにより木材中に水
を飽和させた状態で、前記処理液の含浸処理を行うこと
を特徴とする改質木材の製法をその要旨としている。Therefore, the present invention is a modification in which the raw material wood to be modified is separately impregnated with a treatment liquid that produces an insoluble non-combustible inorganic material by mixing to fix the inorganic material in the wood tissue. A method of manufacturing wood, wherein the raw material wood is saturated with water by performing a saturated water treatment on the veneer before the impregnation treatment with the treatment liquid is performed, and the treatment liquid is used. The gist is a method for producing modified wood, which is characterized by performing the impregnation treatment of.
以下に、この発明を詳しく説明する。The present invention will be described in detail below.
この発明に用いられる木材としては、原木丸太，製材
品，スライス単板，合板等があげられ、種類は、特に限
定されない。Examples of wood used in the present invention include log logs, lumber products, sliced veneer, and plywood, and the type is not particularly limited.
この発明における飽水処理は、水中貯木，スチーミン
グ，減圧下含浸，加圧下含浸等により、あらかじめ木材
中に水を飽和させるものであり、その後、飽水状態の原
料木材を処理液と接触させるようにする。すると、処理
液中の薬剤イオンが木材中に水を媒体として速く拡散
し、処理時間が短くてすむようになる。同時に、この最
初に含浸させられたイオンは、木材内に均一に分布する
ようになるため、これらのイオンがつぎの含浸により注
入されたイオンと反応して生成する不溶性不燃性無機物
もまた、木材内に均一に分布するようになるのである。The saturated water treatment in the present invention is to pre-saturate the wood with water by underwater storage, steaming, impregnation under reduced pressure, impregnation under pressure, etc., and then contact the raw wood in a saturated state with the treatment liquid. To do so. Then, the drug ions in the treatment liquid quickly diffuse into the wood using water as a medium, and the treatment time becomes short. At the same time, the initially impregnated ions become evenly distributed in the wood, so the insoluble, non-combustible minerals produced by the reaction of these ions with the ions injected by the subsequent impregnation are also wood. It will be evenly distributed within.
飽水処理は薬剤含浸処理に比べると槽設備や処理操作が
簡単であるため、飽水処理によって薬剤含浸処理槽の占
有時間が短くなることは十分に効率化に有効である。Since the tank equipment and the treatment operation of the water saturation treatment are simpler than those of the chemical impregnation treatment, shortening the occupation time of the chemical impregnation treatment tank by the saturation water treatment is sufficiently effective for efficiency.
原料木材の飽水処理は、不溶性・不燃性無機物の定着性
に優れる２種類の処理液を順に含浸させる方法に特に有
効と言える。飽水状態の原料木材では先に含浸させる薬
剤が均一に分散し濃度勾配の少ない均一含浸となり、後
で含浸させる薬剤の含浸処理の際に先の含浸薬剤が処理
液中に拡散し難く、両薬剤が木材中のみで適切に反応し
生成無機物の均一分布が実現するからである。それに、
飽水状態の原料木材に２種類の処理液に含浸させる場
合、最初の処理液を含浸させた後、次の処理液を含浸さ
せるに先だって乾燥・減圧などの工程を必要としない。
もしそのような工程を採用するとすれば最初に含浸させ
た処理液は乾燥あるいは減圧工程において、水分の移行
（除去）と共に既含浸処理液（薬剤）木材の外に散じて
しまい、結局、十分な処理液含浸量、つまりは十分な不
溶性性無機物の生成が確保できないことになる。なお、
途中に乾燥工程が入る場合は非常に効率も悪い。It can be said that the water saturation treatment of the raw material wood is particularly effective for the method of sequentially impregnating two kinds of treatment liquids having excellent fixability of insoluble and noncombustible inorganic substances. In the case of raw wood in a water saturated state, the chemical to be impregnated first is uniformly dispersed, resulting in uniform impregnation with a small concentration gradient, and during impregnation of the chemical to be impregnated later, it is difficult for the impregnated chemical to diffuse into the treatment liquid. This is because the chemical agent appropriately reacts only in the wood and a uniform distribution of the produced inorganic substance is realized. in addition,
When two kinds of treatment liquids are impregnated into the raw material wood in a water-saturated state, it is not necessary to perform steps such as drying and decompression before impregnating the first treatment liquid and then the next treatment liquid.
If such a process is adopted, the treatment liquid impregnated first will be scattered out of the already impregnated treatment liquid (chemical) wood along with the migration (removal) of water during the drying or depressurization process, and as a result, it will be insufficient. This means that it is impossible to ensure the amount of the treatment liquid impregnated, that is, the formation of a sufficient insoluble inorganic substance. In addition,
If a drying process is included on the way, the efficiency is very poor.
この発明における原料木材の飽水状態とは、要するに、
木材中心まで均一に飽水された状態、換言すると、木材
中に水が飽和した状態が達成できればよいのであるが、
この飽水状態の指針としては、たとえば、ベイツガ材で
は含水率２００％以上、アガチス材では同１８０％以上
程度が目安となる。これは、厚さ３mmの単板に常圧で飽
水処理を行う場合を例にとると、８０℃程度の熱水であ
ればその中に数十時間以上浸漬しておけばよいし、減圧
下等で行えば、その処理時間を短縮することができる。The saturated state of the raw wood in this invention is, in short,
It is only necessary to achieve a state where the center of the wood is uniformly saturated with water, in other words, a state where the wood is saturated with water,
As a guideline for the water saturated state, for example, a water content of 200% or more for the Bettsuga material and 180% or more for the Agathis material. For example, in the case of performing saturated water treatment on a single plate with a thickness of 3 mm under normal pressure, hot water of about 80 ° C may be immersed in it for several tens of hours or more, and depressurized. If it is performed below, the processing time can be shortened.
木材中に分散・定着させる不溶性の不燃性無機物として
は、たとえば、各種炭酸塩，リン酸塩およびリン酸水素
塩，ホウ酸塩，水酸化物………等が挙げられるが、これ
らに限定されることはない。２種以上の不溶性不燃性無
機物が木材中に共存されるようであってもよい。Examples of insoluble non-combustible inorganic substances dispersed and fixed in wood include various carbonates, phosphates and hydrogen phosphates, borates, hydroxides, etc., but are not limited to these. There is no such thing. It may be that two or more insoluble non-combustible inorganics co-exist in wood.
また、１種の不溶性不燃性無機物中に、下記に述べるア
ニオン部分を構成するもの、および／または、アニオン
部分を構成するものが、それぞれ２種以上含まれるよう
であってもよい。In addition, one kind of insoluble incombustible inorganic material may include two or more kinds of constituents of an anion portion and / or constituents of an anion portion described below.
混合することにより上記のような無機物を生じさせる処
理液を調製し、前記飽水処理済みの木材を同処理液中に
順次浸漬することにより、含浸処理が行われる。以下
に、その一例を挙げる。An impregnation treatment is carried out by preparing a treatment liquid that produces the above-mentioned inorganic substance by mixing and successively immersing the water-saturated wood in the treatment liquid. An example thereof will be given below.
まず、上記処理液として、たとえば、不溶性不燃性無機
物中のカチオン部分を構成するカチオンのうちの少なく
とも１種を含む処理液Ａ、および、同無機物中のアニオ
ン部分を構成するアニオンのうちの少なくとも１種を含
む処理液Ｂを調製する。上記カチオンとしては、Ｎ
ａ＋，Ｋ＋，Ｃａ2+，Ｂａ2+，Ａｌ3+，Ｎｉ2+，Ｃｄ2+
等が、上記アニオンとしては、ＣＯ3 2-，ＰＯ4 3-，ＨＰ
Ｏ4 2-，Ｈ２ＰＯ4 -，ＢＯ3 3-，ＯＨ−，ＡｌＯ2 -，
Ｆ−，Ｃｌ−，Ｂｒ−，Ｉ−等がそれぞれ例示できる
が、これらに限定されることはない。First, as the treatment liquid, for example, a treatment liquid A containing at least one kind of cations constituting the cation portion in the insoluble incombustible inorganic substance, and at least one of anions constituting the anion portion in the same inorganic substance. A treatment liquid B containing seeds is prepared. Examples of the cation include N
a + , K + , Ca 2+ , Ba 2+ , Al 3+ , Ni 2+ , Cd 2+
The above anions include CO 3 2− , PO 4 3− , HP
O 4 2− , H 2 PO 4 − , BO 3 3− , OH − , AlO 2 − ,
Examples thereof include F − , Cl − , Br − , I −, etc., but are not limited thereto.
このようなカチオン部分を構成するものと、アニオン部
分を構成するものとの組み合わせは、どれでも可能とい
うわけではなく、イオン半径等による制約がある。その
ような条件を鑑みて、両者を任意に選択し、それらを含
んだ水溶性無機物を各々水に溶解させて、上記処理液Ａ
およびＢを調製する。Any combination of such a cation moiety and an anion moiety is not possible, and there are restrictions due to the ionic radius and the like. In view of such conditions, both are arbitrarily selected, the water-soluble inorganic substances containing them are dissolved in water, and the treatment liquid A is obtained.
And B are prepared.
浸漬処理は、上記処理液Ａ，ついで処理液Ｂの順に行っ
てもよいし、その反対の順であってもよい。このように
して含浸処理が行われた後は、適宜、水洗，乾燥等を行
い、改質木材が得られる。また、必要に応じては、浸漬
処理後、養生等を行ってもよい。The dipping treatment may be performed in the order of the treatment liquid A and then the treatment liquid B, or vice versa. After the impregnation treatment is performed in this way, the modified wood is obtained by appropriately washing with water and drying. If necessary, curing may be performed after the immersion treatment.
つぎに、この発明の実施例および比較例について説明す
る。Next, examples and comparative examples of the present invention will be described.
（実施例１） マツ，スギ，ブナ材の各２mm厚ロータリー単板を常温の
水中に浸漬し、１Torr程度に減圧した後５時間放置し
て、木材を飽水させた（含水率１８０〜２００％に調
整）。(Example 1) 2 mm-thick rotary veneers of pine, cedar, and beech wood were immersed in water at room temperature, depressurized to about 1 Torr, and left for 5 hours to make the wood water saturated (water content 180 to 200). Adjusted to%).
つぎに、第１浴において木材を７０℃のCaCl2・８Ｈ２
Ｏ水溶液中に５時間浸漬し、その後第２浴において、Na
3PO4の４０％水溶液をNaOHでpH９に調整した７０℃の処
理液中に８時間浸漬した。Next, the wood is treated with CaCl 2 · 8H 2 at 70 ° C in the first bath.
Soak in O water solution for 5 hours, then in the second bath, add Na
A 40% aqueous solution of 3 PO 4 was immersed in a treatment liquid at 70 ° C. adjusted to pH 9 with NaOH for 8 hours.
水洗，乾燥後、不溶性不燃性無機物を含んだ改質木材を
得た。After washing with water and drying, modified wood containing insoluble non-combustible inorganic material was obtained.
（実施例２） 第２浴における処理液として、Na3PO4とNaClとの飽和水
溶液をNaOHでpH９に調整した処理液（７０℃）を用いる
ようにし、その他は実施例１と同様に処理して改質木材
を得た。(Example 2) As the treatment liquid in the second bath, a treatment liquid (70 ° C) in which a saturated aqueous solution of Na 3 PO 4 and NaCl was adjusted to pH 9 with NaOH was used, and other treatments were performed in the same manner as in the first embodiment. The modified wood was obtained.
（実施例３） 第１浴における処理液として、BaCl2の７０℃飽和水溶
液を、第２浴における処理液として、Na3PO4とH2BO3と
の飽和水溶液をNaOHでpH９に調整した処理液（７０℃）
をそれぞれ用いるようにし、以下、実施例１と同様にし
て改質木材を得た。Example 3 A 70 ° C. saturated aqueous solution of BaCl 2 was used as the treatment liquid in the first bath, and a saturated aqueous solution of Na 3 PO 4 and H 2 BO 3 was adjusted to pH 9 with NaOH as the treatment liquid in the second bath. Treatment liquid (70 ℃)
And modified wood was obtained in the same manner as in Example 1.
（実施例４） スギ１mm厚単板に実施例１と同様に飽水処理を施し、含
水率を２００％に調整した。Example 4 Sugi 1 mm thick veneer was saturated with water in the same manner as in Example 1 to adjust the water content to 200%.
この飽水木材を、pH9.42に調整したNa2HPO4水溶液（0.9
Ｍ，７０℃；処理液Ｘとする）に６時間浸漬し、続いて
（木材を乾燥せずにそのまま）、CaCl2処理液（1.5Ｍ，
７０℃；処理液Ｙとする）中に１２時間浸漬した。This saturated wood was adjusted to pH 9.42 with an aqueous Na 2 HPO 4 solution (0.9
M, 70 ° C .; treated solution X) for 6 hours, followed by (without drying wood) CaCl 2 treated solution (1.5 M,
70 ° C .; treated liquid Y) for 12 hours.
以降、同様に水洗，乾燥して改質木材を得た。After that, it was washed with water and dried in the same manner to obtain modified wood.
（実施例５） はじめに上記処理液Ｙ，ついで処理液Ｘの順に浸漬処理
を行うようにする他は、実施例４と同様に処理して改質
木材を得た。(Example 5) Modified wood was obtained in the same manner as in Example 4, except that the treatment liquid Y was first and then the treatment liquid X was soaked in this order.
（比較例１） 気乾状態（含水率１０〜１５％）のスギ３mm厚単板を、
上記処理液Ｘ中に１２時間浸漬し、ついで、上記処理液
Ｙ中に１８時間浸漬して、同様に改質木材を得た。(Comparative Example 1) A cedar 3 mm thick veneer in an air-dried state (water content 10 to 15%) was used.
It was dipped in the treatment liquid X for 12 hours and then dipped in the treatment liquid Y for 18 hours to obtain a modified wood in the same manner.
（比較例２） 実施例１において、含水率が約８０％となるように含水
処理（処理時間は約0.5時間）を行った他は、全く同様
にして改質木材を得た。(Comparative Example 2) A modified wood was obtained in exactly the same manner as in Example 1, except that the hydrous treatment (treatment time was about 0.5 hour) was performed so that the water content became about 80%.
以上の改質木材について、重量増加率，無機物の含浸率
分布およ寸法安定性（抗収縮能：ＡＳＥ）を調べ、得ら
れた結果を同く第１表に示す。なお、上記含浸率分布
は、処理した木材を１６等分してそれぞれにおける含浸
率を求め、それらの標準偏差で表した。With respect to the above modified wood, the weight increase rate, the impregnation rate distribution of inorganic substances and the dimensional stability (anti-shrinkage ability: ASE) were examined, and the obtained results are also shown in Table 1. The above-mentioned impregnation rate distribution was obtained by dividing the treated wood into 16 equal parts and determining the impregnation rate for each, and expressed as the standard deviation thereof.
第１表にみるように、実施例の改質木材は、比較例に比
べて含浸処理時間が短いにもかかわらず、比較例の改質
木材と同等もしくはそれ以上に多量の無機物を含み、寸
法安定性にも優れていた。また、含浸率分布から、実施
例の改質木材中には、含浸された無機物が均一に分布し
ていることが明らかとなった。 As can be seen from Table 1, the modified wood of the Examples contains a large amount of inorganic substances equivalent to or more than the modified wood of the Comparative Examples even though the impregnation treatment time is shorter than that of the Comparative Examples. It was also excellent in stability. Further, from the impregnation rate distribution, it was revealed that the impregnated inorganic substances were uniformly distributed in the modified wood of the example.
さらに、難燃性および防腐・防虫性についても調べた結
果、得られた実施例および比較例の改質木材は、いずれ
も高度な難燃性および防腐・防虫性を有していることが
判明した。とりわけ、飽水処理を行った実施例では、上
述のように木材中に含まれる無機物の分布状態が均一に
なるために、防火性能にバラツキがなく、性能の安定し
た改質木材が得られた。Furthermore, as a result of investigating the flame retardancy and the antiseptic / insect-proof property, it was found that the modified woods of the obtained Examples and Comparative Examples all have a high degree of flame-retardant property and antiseptic / insect-proof property. did. In particular, in the example in which the water saturation treatment was performed, since the distribution state of the inorganic substances contained in the wood was uniform as described above, there was no variation in fire prevention performance, and modified wood with stable performance was obtained. .
この発明にかかる改質木材の製法は、以上のようであ
り、処理液による含浸処理が行われる前に、原料木材に
対して飽水処理を行い、木材中に水を飽和させた状態で
処理液の含浸処理を行うようにしているため、処理液の
含浸処理時間が短縮されるとともに、木材中に含浸され
た無機物の分布が均一となり、難燃性，寸法安定性，防
腐・防虫性に優れ、かつ、性能も安定した改質木材を得
ることができる。The method for producing the modified wood according to the present invention is as described above. Before the impregnation treatment with the treatment liquid is performed, the raw wood is saturated with water and treated in a state where the wood is saturated with water. Since the impregnation treatment of the liquid is performed, the impregnation time of the treatment liquid is shortened and the distribution of the inorganic substances impregnated in the wood is made uniform, resulting in flame retardancy, dimensional stability, antiseptic and insect repellent properties. It is possible to obtain a modified wood which is excellent and has stable performance.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 瀬戸 和夫 大阪府門真市大字門真1048番地 松下電工 株式会社内 (72)発明者 平尾 正三 大阪府門真市大字門真1048番地 松下電工 株式会社内 (56)参考文献 特許161098（ＪＰ，Ｃ１) 特許165233（ＪＰ，Ｃ２) 「木材工業ハンドブック」丸善株式会 社、昭．39．８．10，Ｐ．673〜678，697 〜698 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuo Seto 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Shozo Hirao 1048, Kadoma, Kadoma City, Osaka Matsushita Electric Works, Ltd. (56) References Patent 161098 (JP, C1) Patent 165233 (JP, C2) "Timber Industry Handbook" Maruzen Co., Ltd., Sho. 39.8.10, P. 673 ~ 678, 697 ~ 698
Claims (1)
ることにより不溶性の不燃性無機物を生じさせる処理液
を別々に含浸させて木材組織内に前記無機物を定着させ
るようにする改質木材の製法であって、前記処理液によ
る含浸処理が行われる前に、前記原料木材を単板化して
飽水処理を行うことにより木材中に水を飽和させた状態
で、前記処理液の含浸処理を行うことを特徴とする改質
木材の製法。1. A modified wood for fixing a raw material wood to be modified by impregnating a treatment liquid which produces an insoluble non-combustible inorganic material by mixing with each other to fix the inorganic material in a wood structure. In the state where water is saturated in the wood by subjecting the raw wood to a veneer and saturated water before the impregnation treatment with the treatment liquid is performed, the treatment liquid is impregnated with the treatment liquid. A method for producing modified wood, characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32591687A JPH0635123B2 (en) | 1987-12-23 | 1987-12-23 | Modified wood manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32591687A JPH0635123B2 (en) | 1987-12-23 | 1987-12-23 | Modified wood manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63178001A JPS63178001A (en) | 1988-07-22 |
| JPH0635123B2 true JPH0635123B2 (en) | 1994-05-11 |
Family
ID=18182026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32591687A Expired - Lifetime JPH0635123B2 (en) | 1987-12-23 | 1987-12-23 | Modified wood manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635123B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2781819B2 (en) * | 1989-10-13 | 1998-07-30 | 株式会社ノダ | Kotatsu |
| EP2937193A1 (en) * | 2014-04-24 | 2015-10-28 | ETH Zurich | Mineralized wood materials and methods providing mineralized wood materials |
| JP7721120B2 (en) * | 2020-09-15 | 2025-08-12 | 公立大学法人秋田県立大学 | Wood processing method and wood processed products |
-
1987
- 1987-12-23 JP JP32591687A patent/JPH0635123B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| 「木材工業ハンドブック」丸善株式会社、昭．３９．８．１０，Ｐ．６７３〜６７８，６９７〜６９８ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63178001A (en) | 1988-07-22 |
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